Refrigeration



Oct. 23, 1928. I

C. C. SPREEN REFR I GERATI ON Filed Feb. 21, 1927 Patented Oct. 23, 1928. I

1,688,899 PATENT ounce.

UNITED Sf IA TES CHARLES C. SPItEEN, OF DETROIT, MICHIGAN, ASSIGNOR TO KELVINATOR CORPORA- TIOIT, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

REFRIGERATION.

Application filed February 21, 1927. Serial No. 169,751.

My invention relates to refrigeration, and particularly to means for increasing the heat absorbing power of a refrigerant-expansion unit, and the principal object of my invention is to provide new and improved means of this type. In the drawings accompanying this specification and forming a part of this application I have shown, for purposes of illustration, one form which my invention may assume, and in these drawings:

Figure 1 is a front elevation of this em bodiment of my'invention, while Figure 2 is'a side elevation thereof.

The "embodiment of my invention shown herein comprises a receptacle 11 adapted to contain brine or similar heat conducting material, having the form of a spiral tube and adapted to be disposed around a'refrigerant expander 12, of the usual float valve type, with an extended portion of each turn of the spiral depending below the expander 12 in the formof a loop 13. The space enclosed by the depending loops 14 attached to the sides of the loops 13 into a plurality of sections adapted to receive ice trays supportable on the shelves 14c, and

I i the sides of the loops 13 are also provided with outwardly extending fins 16 which serve to increase the heat conducting power of the tube likereceptacle 11. q

From the above disclosure it will be obvious to those skilled in the art that I have pro-' vided new and improved means for increas ing the heat absorbing power of a refrigerant n5 expansion unit in a mechanical refrigeration system. i p

At thesame time it also will be obvious to those skilled in the art that the embodiment of the invention herein shown and described 8 'out departing from the spirit of my invention or sacrificing the advantages thereof, and it therefore will be understood that the disclosure herein is illustrative only, and that my invention is not limited thereto. I

Iclaimz' 1. For use in the refrigerating compartment of a mechanical refrigerator system: a heat absorbing unit eomprising a refrigerant expansion drum, as of the usual float type,

; and heat conducting means, for increasing the heat absorbing power of said drum, having the form of a spiral tube adapted to contain brine, having with said brine a high heat ing the form of a spiral, having a high heat 13 isdivided by shelves may be variously changed; and modified with? I cooling unit including a liquid refrigerant conductivity, engaged about the exterior of' said drum, extending substantially throughout the length of said drum, and extending outwardly from said drum.

2-. For usein the refrigerating compartment of a mechanical-refrigerator system: a heat'absorbing unit comprising a refrigerant expansion drum, as of the usual float type,

and heat conducting means, for increasing the heatabsorbing power of said drum, hav- I I conductivity, engaged about the exterior of said drum, extending substantially throughout the length of said drum, extending outwardly from said drum, and provided with supportlng means adapted to support objects 0 such as ice trays. 7 3. For usin the refrigerating compartment of. a mechanical refrigerator system: a heat absorbing unit comprising a refrigerant expansion drum, as of the usual'fioat type, 7

and heat conducting means, for. increasing the heat absorbing power of said drum, havmg the form of a spiral tube, adapted to contain heat conducting material, having with sand material a high'heat conductivity, engaged about the exterior of said drum, ex-

tending substantially throughout the length of said drum, extending outwardly from said drum, and provided with supporting means adapted to support objects such as ice trays.

4; In a mechanical refrigerating system, a cooling unit including a liquid refrigerant container, and a continuous brine containing coil extending around and having regularly spaced portions of the length thereof engag ing said container. 5. In a mechanical refrigerating system, a cooling unit including a liquid refrigerant container, and brine containing pipe loops supported by said container in thermal con-e tact therewith at one end of said'loops and having the other end of said loops spaced therefrom.

6. In a mechanical refrigerating system, a

container, brine containing loops supported in thermal contact with said container, and fins attached to portionsbf said loop, disposed remote from said container, said fins being formed of high heat conducting material.

7 In a mechanical refrigerating system, a cooling. unit including a liquid refrigerant container, and'a continuous brine containing coil extending helically the length of said con tainer,said coil being formed of high heat 110 conducting material and arranged With one end of each loop of said coil in thermal contact with said container and with the other end of each loop spaced from said container.

0 8. In a mechanical refrigerating system, a coolmg unit including a llqllld refrigerant container, a brine containing coil wound spirally around said container and extending outwardly therefrom in looped form, and tray supporting means Within said outwardly extending loops.

9. In a mechanical refrigerating system, a

cooling unit including a liquid refrigerant container, brine containing pipe loops in thermal contact with said container and extending from one side thereof in aligned relation, and a tray supporting shelf Within and secured in thermal contact with the opposite legs of said loops.

signature.

In testimony whereofl hereunto afli-x my 20 

